/Engine/Source/Runtime/Engine/Public/CanvasRendererItem.h
Determine if this is a matching set by comparing material,transform. All must match
true if the parameters match this render item
bool IsMatch ( const [FMaterialRenderProxy](API\Runtime\Engine\Materials\FMaterialRenderProxy) * InMaterialRenderProxy, const [FCanvas::FTransformEntry](API\Runtime\Engine\FCanvas\FTransformEntry) & InTransform )